Visit the official Shodan API documentation at:

This is still in active development, error handling might not well handle well. Best bet when working with any libraries you didn't write..harden your calls!

Installation

install-package Shodan.Net

Getting started

You need to have an Api key. Get your api key here.

Create a shodan client. Note that ShodanClient inerhits from IDisposable, so you should wrap it in a using, or make sure it will be disposed. Shodan client is thread safe, so you should be able to keep 1 object around for many requests.

var client = new Shodan.Net.ShodanClient("myapiKey");

Now just query away.

 await client.GetPortsAsync();
 await client.GetHostAsync("172.1.1.0");
 await client.GetMyIpAsync();

Searching

Searching shodan requires you to build up queries, and facets to make it easier we have used a generator pattern to produce queries.

 await client.SearchHosts(
      query: a => a.Withcity("boston")
            .Withcountry("usa")
            .Before(DateTime.Now.AddDays(-5)),
      facet: b => b.WithAsn()
 
      );